def cross_products(self, vector_i, vector_j): cross_products = [] for axis_i, axis_j in itertools.product(vector_i, vector_j): if axis_i is not axis_j: axis_cross = cross_product(axis_i, axis_j) if rho(axis_cross) > self.error: axis_cross = normalize(axis_cross) cross_products.append(axis_cross) return cross_products
def check_array(self, axis, axis_of_rotations_i): for axis_i in axis_of_rotations_i: if rho(cross_product(axis, axis_i)) <= self.error: return False return True